Ian E. Henderson

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Tucson, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Contamination detection apparatus and method using write power cali...
- Patent number 5,555,237
- Issue date Sep 10, 1996
- International Business Machines Corporation
- Bryan A. Cassels
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage member having areas in which intensity-modulated signa...
- Patent number 5,272,692
- Issue date Dec 21, 1993
- International Business Machines Corporation
- Ian E. Henderson
- G11 - INFORMATION STORAGE
Information Patent Grant
Positioning systems employing velocity and position control loops w...
- Patent number 5,090,002
- Issue date Feb 18, 1992
- International Business Machines Corporation
- William W. Chow
- G05 - CONTROLLING REGULATING
Information Patent Grant
Recording intensity modulated signals and polarization-modulated op...
- Patent number 5,050,144
- Issue date Sep 17, 1991
- International Business Machines Corporation
- Ian E. Henderson
- G11 - INFORMATION STORAGE
Information Patent Grant
Positioning systems including reliable track crossing detection for...
- Patent number 5,038,333
- Issue date Aug 6, 1991
- International Business Machines Corporation
- William W. Chow
- G11 - INFORMATION STORAGE
Information Patent Grant
Transducer positioning servo mechanisms employing digital and analo...
- Patent number 4,914,725
- Issue date Apr 3, 1990
- International Business Machines Corporation
- Karl A. Belser
- G05 - CONTROLLING REGULATING